Current national guidelines recommend aggressive lowering of blood pressure (< 130/80 mm Hg) in patients with chronic kidney
disease (CKD). In this paper, we summarize recent clinical trial data evaluating the effect of lower blood pressure goals
on renal outcomes. The epidemiologic data relating blood pressure to progression of kidney disease, the Modification of Diet
in Renal Disease (MDRD) study (in patients with > 1 g proteinuria/d), and meta-analyses of angiotensin-converting enzyme (ACE)
inhibitor clinical trials all support lower blood pressure goals in CKD patients, particularly those with proteinuria. The
African American Study of Kidney Disease and Hypertension (AASK) supports lower blood pressure goals in terms of reduction
of proteinuria, but demonstrates no additional benefit for clinical renal outcomes. Similarly, the second Ramipril Efficacy
in Nephropathy study (REIN-2) shows that in patients with proteinuric nondiabetic renal disease who are receiving ACE inhibitors,
a lower than usual blood pressure goal does not improve renal outcomes. However, there are limited clinical trial data evaluating
the effects of low blood pressure on the increased cardiovascular risk seen in patients with CKD. Pending further clinical
studies, current recommendations to target tight blood pressure control (< 130/80 mm Hg) in patients with CKD appear reasonable.